I found a solution to turning on and off games quickly.
This time of year they make a remote control for outside Christmas lights. They go for $10-$15 bucks. You plug it into the wall with a 3 split on it, plug in 3 games.
The remote has a 50' range so you can just set it on a table and *click* all the games turn on.
It's not good to turn on a whole bank of games at the same time, but 3 at a time is okay. The units usually carry up to 1500 watts on one so it can run multiple games.
Look for them in the Christmas light section. Like I said, they only sell them this time of year.